KaTeX Automatic Numbering

[kookma]

KaTeX nicely uses automatic numbering for some environments! One issue is when there are several tiddlers having KaTeX equations and you open those tiddlers in the story river the equation numbers are updated and based on the order of tiddlers the number changes!

The question is how one can force reset numbering on each tiddler!

I know I can reset numbering by wrapping `$$...$$ into a div for example:

<style>
.main  { counter-reset: katexEqnNo; }
</style>
<div class=main>

tiddler contents....
.
.
</div>

Does TW tiddler have any specific class to be used here? I mean a unique class tell us a tiddler has been started and there was no need to use an extra class like the above

[kookma]

I did some experiments and it seems, a stylesheet (a tiddler tagged with $:/tags/Stylesheet) as below works

.tc-tiddler-frame { counter-reset: katexEqnNo; }

do you recommend this solution?

[pmario]

Yes. .tc-tiddler-body is the DIV that separates the tiddler-body from the other tiddler elements. eg: title, subtitle, tags and so on. ..

tiddler-frame .tc-tiddler-frame. contains all the elements that make a tiddler in the story-river.

[Jermolene]

Sounds reasonable - @pmario might you be able to create a PR?

[pmario]

Sounds reasonable - @pmario might you be able to create a PR?

yes.

@kookma .. Are there any other elements, that need resetting that way?

[pmario]

@kookma You may add more info at the issue: #6041 So I can create a PR

[kookma]

@pmario - I asked the question from KaTeX author (see KaTeX/KaTeX#3265). It seems the katexEqnNo is the counter!

One can reset number by sections e.g. headings (like in an article), so he/she can customize it using

h1 { counter-reset: katexEqnNo; }

So, I think the katexEqnNo is the only counter to be reset! It controls numbering for equation, align, aligned, gather,...
I have created some test case and docs here (KaTex Automatic Numbering)

@Jermolene - I have created a documentation wiki for KaTeX in Tiddlywiki (see https://kookma-katex.tiddlyhost.com/) I may propose to add a link in the official KaTeX Demo wiki!

[pmario]

@kookma @Jermolene ... There's a PR: #6046